If 18.7 grams of an aqueous solution of ammonium fluoride, NH4F, contains 1.26 grams of ammonium fluoride, what is the percentage by mass of ammonium fluoride in the solution?

The  percentage by mass of ammonium fluoride in the solution : 6.738%

Given

18.7 g of NH4F solution

1.26 g NH4F

Required

The  percentage by mass

Solution

mass solute = mass Ammonium fluoride

mass solute = 1.26 g

mass solution = 18.7 g

Input the value :

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answer; natural resources;